As reported by Fengguang Wu <fengguang.wu@xxxxxxxxx> drivers/built-in.o: In function `vb2_ioctl_streamon': >> (.text+0x8d354): undefined reference to `video_devdata' drivers/built-in.o: In function `vb2_ioctl_streamoff': >> (.text+0x8d397): undefined reference to `video_devdata' drivers/built-in.o: In function `vb2_ioctl_expbuf': ... That happens when: CONFIG_VIDEO_DEV=y CONFIG_VIDEO_V4L2=m CONFIG_VIDEO_USBTV=y As the core is module, usbtv should also be compiled as module. Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx> --- drivers/media/usb/usbtv/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/usb/usbtv/Kconfig b/drivers/media/usb/usbtv/Kconfig index 8864436..7c5b860 100644 --- a/drivers/media/usb/usbtv/Kconfig +++ b/drivers/media/usb/usbtv/Kconfig @@ -1,6 +1,6 @@ config VIDEO_USBTV tristate "USBTV007 video capture support" - depends on VIDEO_DEV + depends on VIDEO_V4L2 select VIDEOBUF2_VMALLOC ---help--- -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html